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US Patent: 1,267,287
Illuminator for Microscopes
Patentee: Alexander Silverman (exact or similar names) - Pittsburgh, PA USPTO Classifications: 359/799, 362/216, 362/396 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: John F. Will J. R. Keller S. F. Armstrong	Patent Dates: Applied: Nov. 13, 1917 Granted: May 21, 1918 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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